Intelligent epidemic prevention system and method

Abstract

An intelligent epidemic prevention system includes a calibration device, an access control system, a visible-light camera recording a first calibration device image of the calibration device and a first user image of a user, a thermographic camera recording a second calibration device image of the calibration device and a second user image of the user, and a computing device that calculates a calibration value according to the first and second calibration device images. The computing device determines whether the user wears a mask properly according to the first user image and generates a first result, and determines whether the temperature of the user is greater than or equal to a threshold temperature according to the calibration value and the second user image and generates a second result. The computing device controls the access control system to open or close according to the first and second results.

What is claimed is: 
     
       1. An intelligent epidemic prevention system, comprising:
 a calibration device having a metal plate, wherein the metal plate is heated to a predetermined sensing temperature; 
 an access control system; 
 a visible-light camera recording a first calibration device image of the calibration device and a first user image of a user; 
 a thermographic camera recording a second calibration device image of the calibration device and a second user image of the user; and 
 a computing device calculating a first position of the calibration device on the first calibration device image and a second position of the calibration device on the second calibration device image, calculating a base-corresponding position of the calibration device on the second calibration device image according to the first position, and calculating a calibration value according to the second position and the base-corresponding position; 
 wherein the computing device determines whether the user is wearing a mask properly according to the first user image and generates a first result, and determines whether a body temperature of the user is greater than or equal to a threshold temperature according to the calibration value and the second user image and generates a second result; 
 wherein the computing device controls the access control system to open or close according to the first result and the second result. 
 
     
     
       2. The intelligent epidemic prevention system as claimed in  claim 1 , wherein the predetermined sensing temperature is greater than a room temperature and the metal plate has hollow geometric patterns. 
     
     
       3. The intelligent epidemic prevention system as claimed in  claim 1 , wherein:
 the computing device controls the access control system to open in response to the user wearing the mask properly and the body temperature being lower than the threshold temperature; and 
 the computing device controls the access control system to close in response to the user wearing the mask improperly or the body temperature being greater than or equal to the threshold temperature. 
 
     
     
       4. The intelligent epidemic prevention system as claimed in  claim 3 , wherein:
 the computing device captures a face area in the first user image by detecting facial key points in the first user image; the computing device calculates a base-corresponding area of the face area in the second user image and calibrates a position of the base-corresponding area with the calibration value to obtain a calibrated corresponding area in the second user image, and the computing device determines that the body temperature of the user is greater than or equal to the threshold temperature when a temperature in the calibrated corresponding area is greater than or equal to the threshold temperature. 
 
     
     
       5. The intelligent epidemic prevention system as claimed in  claim 1 , further comprising a data analysis device coupled to the computing device;
 the computing device transmits user information to the data analysis device in response to the opening or closing of the access control system; and 
 the data analysis device generates an analysis result according to the user information; 
 wherein the user information comprises: 
 a first signal indicating whether the body temperature of the user is greater than or equal to the threshold temperature; and 
 a second signal indicating whether the user is wearing the mask properly; and 
 wherein the analysis result comprises a distribution of the first signal and the second signal at different stations. 
 
     
     
       6. An intelligent epidemic prevention method, comprising:
 recording a first calibration device image of a calibration device with a visible-light camera, wherein the calibration device has a metal plate heated to a predetermined sensing temperature; 
 recording a second calibration device image of the calibration device with a thermographic camera; 
 calculating a first position of the calibration device on the first calibration device image and a second position of the calibration device on the second calibration device image; 
 calculating a base-corresponding position of the calibration device on the second calibration device image according to the first position, and calculating a calibration value according to the second position and the base-corresponding position; 
 recording a first user image of a user with the visible-light camera; 
 recording a second user image of the user with the thermographic camera; 
 determining whether the user is wearing a mask properly according to the first user image and generating a first result, and determining whether a body temperature of the user is greater than or equal to a threshold temperature according to the calibration value and the second user image and generating a second result; and 
 controlling an access control system to open or close according to the first result and the second result. 
 
     
     
       7. The intelligent epidemic prevention method as claimed in  claim 6 , wherein the predetermined sensing temperature is greater than a room temperature and the metal plate has hollow geometric patterns. 
     
     
       8. The intelligent epidemic prevention method as claimed in  claim 6 , wherein:
 the access control system opens when the user is wearing the mask properly and the body temperature is lower than the threshold temperature; and 
 the access control system closes when the user is wearing the mask improperly or the body temperature is greater than or equal to the threshold temperature. 
 
     
     
       9. The intelligent epidemic prevention method as claimed in  claim 8 , wherein the operations of determining whether the user is wearing the mask properly and determining whether the body temperature of the user is greater than or equal to the threshold temperature include:
 capturing a face area in the first user image by detecting facial key points in the first user image; 
 calculating a base-corresponding area of the face area in the second user image and calibrating a position of the base-corresponding area with the calibration value to obtain a calibrated corresponding area in the second user image; and 
 when a temperature in the calibrated corresponding area is greater than or equal to the threshold temperature, the computing device determines that the body temperature of the user is greater than or equal to the threshold temperature. 
 
     
     
       10. The intelligent epidemic prevention method as claimed in  claim 6 , further comprising:
 generating user information in response to the opening or closing of the access control system; and 
 generating an analysis result according to the user information; 
 wherein the user information comprises: 
 a first signal indicating whether the body temperature of the user is greater than or equal to the threshold temperature; and 
 a second signal indicating whether the user is wearing the mask properly; and 
 wherein the analysis result comprises a distribution of the first signal and the second signal at different stations.